(CNN) -- Four inmates made a clean getaway from an Oklahoma jail Sunday after prying open a maintenance hatch in their shower.
The four pulled off the first escape from the two-year-old Caddo County jail in Anadarko, Sheriff Gene Cain said.
They first broke a lock on the hatch above the shower head, Caintold CNN affiliate KFOR-TV.
They then moved through a crawl space until they reached a wall, where they knocked out cement block or two, the sheriff said. That got them to an unlocked door outside the jail area, Cain said.
They apparently kept their clothes on in the shower. Four orange inmate uniforms were found outside the jail, CNN affiliate KOCO-TV reported.
Three of the escapes, 21-year-old Dylan Ray Three Irons, 23-year-old Prime Brown and 24-year-old Anthony James Mendonca had been convicted of methamphetamine offenses and were awaiting transfer to a state prison.
The fourth escapee, 32-year-old Triston Cheadle, was awaiting trial on a federal gun charge, KOCO-TV reported.